lets start with .999 now we all know that dosent =1

unless you round it up or add .001

now

lets try

.999999999999999999999999999999

now that still dosent =1 because we need to round up or add .00000000000000000000000000001

now we try

.9999999999999999999999999999999999999999999999

99999999999999999999999999999999999999999999999

99999999999999999999999999999999999999999999999

99999999999999999999999999999999999999999999999

99999999999999999999999999999999999999999999999

99999999999999999999999999999999999999999999999

99999999999999999999999999999999999999999999999

99999999999999999999999999999999999999999999999

99999999999999999999999999999999999999999999999

99999999999999999999999999999999999999999999999

99999999999999999999999999999999999999999999999

99999999999999999999999999999999999999999999999

99999999999999999999999999999999999999999999999

99999999999999999999999999999999999999999999999

99999999999999999999999999999999999999999999999

99999999999999999999999999999999999999999999999

99999999999999999999999999999999999999999999999

99999999999999999999999999999999999999999999999

99999999999999999999999999999999999999999999999

99999999999999999999999999999999999999999999999

99999999999999999999999999999999999999999999999

99999999999999999999999999999999999999999999999

99999999999999999999999999999999999999999999999

99999999999999999999999999999999999999999999999

99999999999999999999999999999999999999999999999

this is still not 1 because we need to round up or add

.0000000000000000000000000000000000000000000000

00000000000000000000000000000000000000000000000

00000000000000000000000000000000000000000000000

00000000000000000000000000000000000000000000000

00000000000000000000000000000000000000000000000

00000000000000000000000000000000000000000000000

00000000000000000000000000000000000000000000000

00000000000000000000000000000000000000000000000

00000000000000000000000000000000000000000000000

00000000000000000000000000000000000000000000000

00000000000000000000000000000000000000000000000

00000000000000000000000000000000000000000000000

00000000000000000000000000000000000000000000000

00000000000000000000000000000000000000000000000

00000000000000000000000000000000000000000000000

00000000000000000000000000000000000000000000000

00000000000000000000000000000000000000000000000

00000000000000000000000000000000000000000000000

00000000000000000000000000000000000000000000000

00000000000000000000000000000000000000000000000

00000000000000000000000000000000000000000000000

00000000000000000000000000000000000000000000000

00000000000000000000000000000000000000000000000

00000000000000000000000000000000000000000000000

00000000000000000000000000000000000000000000001

its true thats the exact point u need

k now lets try an infinit amount of 9s

.999999999999999999999999- forever

ok this still dosent equle 1 because

you need to add a .0000000000 forever and a 1 at the end

do you get it now?